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MissTica
2 years ago
10

A 2.5 L container is filled with propane. The ambient temperature is 25°C and the

Chemistry
2 answers:
vlabodo [156]2 years ago
6 0

Answer:

3.3atm is the new pressure of the container

Explanation:

In the car, the temperature of the container increases from 25°C  =298K to 55°C = 328K. To solve this question we must use the Boyle's law that state that the pressure of a gas is directly proportional to its absolute temperature under constant volume. The equation is:

P1T2 = P2T1

<em>Where P is pressure and T absolute temperature of 1, initial state of the gas and 2, final state.</em>

<em />

Replacing:

P1 = 3atm

T2 = 328K

P2 = ?

T1 = 298K

3atm*328K = P2*298K

P2 = 3.3atm is the new pressure of the container

<em />

egoroff_w [7]2 years ago
4 0

Answer:

3.3 atm

Explanation:

First we <u>convert 25 °C and 55 °C to K</u>:

  • 25 °C + 273.16 = 298.16 K
  • 55 °C + 273.16 = 328.16 K

We can solve this problem by using Gay Lussac's law, which states that at constant volume:

  • T₁P₂=T₂P₁

Where in this case:

  • T₁ = 298.16 K
  • P₂ = ?
  • T₂ = 328.16 K
  • P₁ = 3 atm

We <u>input the data</u>:

  • 298.16 K * P₂ = 328.16 K * 3 atm

And <u>solve for P₂</u>:

  • P₂ = 3.3 atm
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given that 32.0g sulphur contains 6.02×10^23 sulphur atoms,how many atoms are there in 2.70g of aluminum​
dangina [55]

Answer:

6.022 × 10²² atoms

Explanation:

Generally 1 mol of any element contains 6.02×10^23  atoms. The number 6.022 × 10²³ is known as Avogadro's number.

Mass of Aluminium = 2.70g

Molar mass = 27g/mol

Number of moles = Mass / Molar mass = 2.70 / 27 = 0.1 mol

1 mol =  6.022 × 10²³

0.1 mol = x

x = 6.022 × 10²³ * 0.1 = 6.022 × 10²² atoms

5 0
2 years ago
How many moles of H2O2 are needed to react with 1.07 moles of N2H4?
I am Lyosha [343]

Answer:

2.14 moles of H₂O₂ are required

Explanation:

Given data:

Number of moles of H₂O₂ required = ?

Number of moles of N₂H₄ available = 1.07 mol

Solution:

Chemical equation:

N₂H₄  +   2H₂O₂       →   N₂ +  4H₂O

now we will compare the moles of H₂O₂ and N₂H₄

                          N₂H₄     :      H₂O₂  

                            1           :        2

                            1.07      :         2×1.07 = 2.14 mol

                   

6 0
3 years ago
What is the mass of an object that has a density of 0.500 g/cm3 and a volume of 5.00 mL?
attashe74 [19]

Answer:

<h2>The answer is 2.5 g</h2>

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

<h3>mass = Density × volume</h3>

From the question

density = 0.5 g/cm³

1 mL = 1 cm³

5 mL = 5 cm³

volume = 5 cm³

The mass is

mass = 0.5 × 5

We have the final answer as

<h3>2.5 g</h3>

Hope this helps you

4 0
3 years ago
CH3CH2OH is an organic compound that is soluble in water. What type of compound is this?
shepuryov [24]

Answer:

Ethanol

Explanation:

CH3CH2OH is Ethanol

8 0
3 years ago
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Answer:

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